46、 This is one of the best books__________ on the subject．
A．that have ever been written
B．which have ever been written
C．that has ever been written
D．whatever have been written


47、 The film provides a deep__________ into a wide range of human qualities and feelings．
A．insight
B．imagination
C．fancy
D．outlook


48、 Finally，the thief handed everythin9__________ he had stolen to the police．
A．after
B．what
C．whatever
D．that


49、 The famous novel is said__________ into Chinese．
A．to have translated
B．to be translate
C．to have been translated
D．to translate


50、 We have already built two tunnelswe can get across the big river．
A．which
B．on which
C．by which
D．through which


51、 He has been asked to account__________ his absence．
A．0f
B．on
C．about
D．for


52、 Peter wishes that he__________ law instead of literature when he was in college．
A．could study
B．studied
C．had studied
D．would study


53、 I have got a chair__________ ．
A．to sit
B．for to sit on
C．to sit on
D．for sitting


54、 I watched him until he__________from sight in the distance．
A．retreated
B．removed
C．vanished
D．disappeared


55、 A library with five thousand books__________ to the nation as a gift.
A．is offered
B．has offered
C．are offered
D．have offered